Skip to Main content Skip to Navigation
Conference papers

Chromatic Indices in the Normalized rgb Color Space

Abstract : In typical applications, chromatic indices are calculated as linear combinations of the normalized r-, g-and bchannels and used as features for a later classification based on chromatic appearance. But the variety of indices used in the literature is very limited. Furthermore is the choice of which index to use justified either empirically, based on false mathematical assumptions or not justified at all. The reason for the lack of mathematical justification is that so far no formal definition of chromatic indices existed. Such a definition is provided in this paper. An experimental classification with 180 different index combinations shows that the index choice has a significant impact on the classification. The results stand in sharp contrast to the very limited variety of indices used in the literature. The results imply the need for deterministic methods to estimate ideal indices for a given application, for which we hope the provided formalization might be useful.
Document type :
Conference papers
Complete list of metadata

https://hal-upf.archives-ouvertes.fr/hal-03132308
Contributor : Elodie Delcambre-Maillard Connect in order to contact the contributor
Submitted on : Friday, February 5, 2021 - 1:13:27 AM
Last modification on : Friday, February 19, 2021 - 3:08:20 AM
Long-term archiving on: : Thursday, May 6, 2021 - 6:20:50 PM

File

Loesdau, Chabrier, Gabillon - ...
Files produced by the author(s)

Identifiers

Collections

UPF

Citation

Martin Loesdau, Sébastien Chabrier, Alban Gabillon. Chromatic Indices in the Normalized rgb Color Space. 2017 International Conference on Digital Image Computing: Techniques and Applications (DICTA), Nov 2017, Sydney, Australia. pp.1-8, ⟨10.1109/DICTA.2017.8227415⟩. ⟨hal-03132308⟩

Share

Metrics

Record views

15

Files downloads

25